/*
* _08LumaQQ - Java _08QQ Client
*
* Copyright (C) 2004 luma <stubma@163.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package edu.tsinghua.lumaqq.qq.beans;

import java.nio.ByteBuffer;

import edu.tsinghua.lumaqq.qq._08QQ;

/**
 * 传送文件的ip，端口信息封装类
 *
 * @author luma
 */
public class FileTransferArgs {
    // 传输类型
    public byte transferType;
    // 连接方式
    public byte connectMode;
    // 发送者外部ip
    public byte[] internetIp;
    // 发送者外部端口
    public int internetPort;
    // 第一个监听端口
    public int majorPort;
    // 发送者真实ip
    public byte[] localIp;
    // 第二个监听端口
    public int minorPort;

    /**
     * 给定一个输入流，解析FileTransferArgs结构
     *
     * @param buf
     */
    public void readBean(ByteBuffer buf) throws Exception {
        // 跳过19个无用字节
        buf.position(buf.position() + 19);
        // 读取传输类型
        transferType = buf.get();
        // 读取连接方式
        connectMode = buf.get();
        // 读取发送者外部ip
        internetIp = new byte[4];
        buf.get(internetIp);
        // 读取发送者外部端口
        internetPort = buf.getChar();
        // 读取文件传送端口
        if (connectMode != _08QQ.QQ_TRANSFER_FILE_DIRECT_TCP)
            majorPort = buf.getChar();
        else
            majorPort = internetPort;
        // 读取发送者真实ip
        localIp = new byte[4];
        buf.get(localIp);
        // 读取发送者真实端口
        minorPort = buf.getChar();
    }
}
